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Closes #2996.
PiperOrigin-RevId: 316900535
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--tx-checksum-offload=<true|false>
enable TX checksum offload (default: false)
--rx-checksum-offload=<true|false>
enable RX checksum offload (default: true)
Fixes #2989
PiperOrigin-RevId: 316781309
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PiperOrigin-RevId: 316778032
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PiperOrigin-RevId: 316767969
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The previous format skipped many important structs that
are pointers, especially for cgroups. Change to print
as json, removing parts of the spec that are not relevant.
Also removed debug message from gofer that can be very
noisy when directories are large.
PiperOrigin-RevId: 316713267
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In order to make sure all aio goroutines have stopped during S/R, a new
WaitGroup was added to TaskSet, analagous to runningGoroutines. This WaitGroup
is incremented with each aio goroutine, and waited on during kernel.Pause.
The old VFS1 aio code was changed to use this new WaitGroup, rather than
fs.Async. The only uses of fs.Async are now inode and mount Release operations,
which do not call fs.Async recursively. This fixes a lock-ordering violation
that can cause deadlocks.
Updates #1035.
PiperOrigin-RevId: 316689380
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PiperOrigin-RevId: 316627764
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In passive open cases, we transition to Established state after
initializing endpoint's sender and receiver. With this we lose out
on any updates coming from the ACK that completes the handshake.
This change ensures that we uniformly transition to Established in all
cases and does minor cleanups.
Fixes #2938
PiperOrigin-RevId: 316567014
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Updates #2972
PiperOrigin-RevId: 316534165
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PiperOrigin-RevId: 316492839
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Also fix test bugs uncovered now that they aren't silently skipped on
VFS2.
Updates #1487.
PiperOrigin-RevId: 316415807
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I am not really sure what the point of this is, but someone filed a bug about
it, so I assume something relies on it.
PiperOrigin-RevId: 316225127
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Moved the function for generating a payload of random byets of a specified
length into the testbench package so that it's availbale for all tests to use.
Added a test case to the IPv4 ID uniqueness test which uses a payload length
of 512 bytes. This test case passes for gVisor currently, whereas the test case
with a small payload of 11 bytes fails because gVisor only assigns the ID field
if the IP payload is sufficiently large.
PiperOrigin-RevId: 316185097
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PiperOrigin-RevId: 316148074
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PiperOrigin-RevId: 316027588
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Fixes #701
PiperOrigin-RevId: 316025635
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PiperOrigin-RevId: 316022884
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Major differences from existing overlay filesystems:
- Linux allows lower layers in an overlay to require revalidation, but not the
upper layer. VFS1 allows the upper layer in an overlay to require
revalidation, but not the lower layer. VFS2 does not allow any layers to
require revalidation. (Now that vfs.MkdirOptions.ForSyntheticMountpoint
exists, no uses of overlay in VFS1 are believed to require upper layer
revalidation; in particular, the requirement that the upper layer support the
creation of "trusted." extended attributes for whiteouts effectively required
the upper filesystem to be tmpfs in most cases.)
- Like VFS1, but unlike Linux, VFS2 overlay does not attempt to make mutations
of the upper layer atomic using a working directory and features like
RENAME_WHITEOUT. (This may change in the future, since not having a working
directory makes error recovery for some operations, e.g. rmdir, particularly
painful.)
- Like Linux, but unlike VFS1, VFS2 represents whiteouts using character
devices with rdev == 0; the equivalent of the whiteout attribute on
directories is xattr trusted.overlay.opaque = "y"; and there is no equivalent
to the whiteout attribute on non-directories since non-directories are never
merged with lower layers.
- Device and inode numbers work as follows:
- In Linux, modulo the xino feature and a special case for when all layers
are the same filesystem:
- Directories use the overlay filesystem's device number and an
ephemeral inode number assigned by the overlay.
- Non-directories that have been copied up use the device and inode
number assigned by the upper filesystem.
- Non-directories that have not been copied up use a per-(overlay,
layer)-pair device number and the inode number assigned by the lower
filesystem.
- In VFS1, device and inode numbers always come from the lower layer unless
"whited out"; this has the adverse effect of requiring interaction with
the lower filesystem even for non-directory files that exist on the upper
layer.
- In VFS2, device and inode numbers are assigned as in Linux, except that
xino and the samefs special case are not supported.
- Like Linux, but unlike VFS1, VFS2 does not attempt to maintain memory mapping
coherence across copy-up. (This may have to change in the future, as users
may be dependent on this property.)
- Like Linux, but unlike VFS1, VFS2 uses the overlayfs mounter's credentials
when interacting with the overlay's layers, rather than the caller's.
- Like Linux, but unlike VFS1, VFS2 permits multiple lower layers in an
overlay.
- Like Linux, but unlike VFS1, VFS2's overlay filesystem is
application-mountable.
Updates #1199
PiperOrigin-RevId: 316019067
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Tests the effect of reordering on retransmission and window size.
Test covers the expected behavior of both Linux and netstack, however, netstack
does not behave as expected. Further, the current expected behavior of netstack
is not ideal and should be adjusted in the future.
PiperOrigin-RevId: 316015184
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PiperOrigin-RevId: 316011323
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Tentative addresses should not be used when finding a route. This change
fixes a bug where a tentative address may have been used.
Test: stack_test.TestDADResolve
PiperOrigin-RevId: 315997624
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PiperOrigin-RevId: 315991648
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During inititalization inode struct was copied around, but
it isn't great pratice to copy it around since it contains
ref count and sync.Mutex.
Updates #1480
PiperOrigin-RevId: 315983788
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PiperOrigin-RevId: 315979564
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PiperOrigin-RevId: 315972822
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